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[/] [udp_ip_stack/] [trunk/] [rtl/] [vhdl/] [arp_types.vhd] - Diff between revs 8 and 10

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--      Purpose: This package defines supplemental types, subtypes, 
--      Purpose: This package defines supplemental types, subtypes, 
--               constants, and functions 
--               constants, and functions 
--
--
--   To use any of the example code shown below, uncomment the lines and modify as necessary
--   To use any of the example code shown below, uncomment the lines and modify as necessary
--
--
 
-- Revision 0.02 - Added type definitions (store and network) for arpv2
 
 
library IEEE;
library IEEE;
use IEEE.STD_LOGIC_1164.all;
use IEEE.STD_LOGIC_1164.all;
 
 
package arp_types is
package arp_types is
 
 
 
 
 
        -- arp lookup types
 
 
        type arp_req_req_type is
        type arp_req_req_type is
                record
                record
                                lookup_req      : std_logic;                                                                    -- set high when wanting mac adr for the requested IP
                                lookup_req      : std_logic;                                                                    -- set high when wanting mac adr for the requested IP
                                ip                              : std_logic_vector (31 downto 0);
                                ip                              : std_logic_vector (31 downto 0);
                end record;
                end record;
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                                got_mac         : std_logic;                                                                    -- indicates that we got the mac
                                got_mac         : std_logic;                                                                    -- indicates that we got the mac
                                mac                     : std_logic_vector (47 downto 0);
                                mac                     : std_logic_vector (47 downto 0);
                                got_err         : std_logic;                                                                    -- indicates that we got an error (prob a timeout)
                                got_err         : std_logic;                                                                    -- indicates that we got an error (prob a timeout)
                end record;
                end record;
 
 
 
        type arp_entry_t is record
 
                ip                              : std_logic_vector (31 downto 0);
 
                mac                             : std_logic_vector (47 downto 0);
 
        end record;
 
 
        type arp_control_type is
        type arp_control_type is
                record
                record
                                clear_cache     : std_logic;
                                clear_cache     : std_logic;
                end record;
                end record;
 
 
 
        -- arp store types
 
 
 
        type arp_store_rslt_t is (IDLE,BUSY,SEARCHING,FOUND,NOT_FOUND);
 
 
 
        type arp_store_rdrequest_t is
 
                record
 
                        req                             : std_logic;                                                            -- request to lookup
 
                        ip                                      : std_logic_vector(31 downto 0);         -- contains ip to lookup
 
                end record;
 
 
 
        type arp_store_wrrequest_t is
 
                record
 
                        req                             : std_logic;                                                            -- request to store
 
                        entry                           : arp_entry_t;                                                          -- ip,mac to store
 
                end record;
 
 
 
        type arp_store_result_t is
 
                record
 
                        status                  : arp_store_rslt_t;                                             -- status of the request
 
                        entry                           : arp_entry_t;                                                          -- contains ip,mac if found
 
                end record;
 
 
 
        -- arp network types
 
 
 
        type arp_nwk_rslt_t is (IDLE,REQUESTING,RECEIVED,ERROR);
 
 
 
        type arp_nwk_request_t is
 
                record
 
                        req                             : std_logic;                                                            -- request to resolve IP addr
 
                        ip                                      : std_logic_vector(31 downto 0);         -- IP to request
 
                end record;
 
 
 
        type arp_nwk_result_t is
 
                record
 
                        status                  : arp_nwk_rslt_t;                                                       -- status of request
 
                        entry                           : arp_entry_t;                                                          -- the result
 
                end record;
 
 
 
 
end arp_types;
end arp_types;
 
 
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